Contra Costa County, CA

686 public highway bridges

Contra Costa County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Contra Costa County, California contains 686 public highway bridges. Roughly 29.7% are rated “Good,” 26.1% “Fair,” and 5.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

686
Total Bridges
29.7%
Good
26.1%
Fair
5.5%
Poor Condition

Condition Distribution

Good
29.7% (204)
Fair
26.1% (179)
Poor
5.5% (38)

All Bridges (686)

SHELL AVE

Good

Over: OIL REFINERY PIPE UC

0.2 MI N PACHECO BLVD, Contra Costa, CA

Built 1940 Load: 16.2 t ADT: 4,386

DEER PARK DR

Good

Over: PINE CREEK

0.1 MI E OAK GROVE RD, Contra Costa, CA

Built 1967 Load: 16.8 t ADT: 1,000

GOLF CLUB ROAD

Good

Over: CONTRA COSTA CANAL

AT PASO NOGAL, Contra Costa, CA

Built 1940 Load: 16.8 t ADT: 5,000

WATERFRONT RD

Good

Over: PEYTON SLOUGH

0.4 MI E I-680, Contra Costa, CA

Built 1955 Load: 17.2 t ADT: 4,185

BEAR CREEK ROAD

Good

Over: BEAR CREEK

0.4 MI N HAPPY VALLEY RD, Contra Costa, CA

Built 1965 Load: 18.1 t ADT: 1,040

BUCHANAN RD

Good

Over: CONTRA COSTA CANAL

0.4 MI W SOMERSVILLE RD, Contra Costa, CA

Built 1938 Load: 19.8 t ADT: 5,500

BANCROFT RD

Good

Over: WALNUT CREEK

0.1 MI N DAVID ST, Contra Costa, CA

Built 1958 Load: 20.1 t ADT: 19,300

ORINDA WAY

Good

Over: SAN PABLO CREEK

AT CAMINO PABLO, Contra Costa, CA

Built 1920 Load: 20.1 t ADT: 6,000

JAMES DONLON BLVD

Good

Over: CONTRA COSTA CANAL

1.5 MI E SOMERVILLE RD, Contra Costa, CA

Built 1950 Load: 20.4 t ADT: 1,873

VAN NESS STREET

Good

Over: WILDCAT CREEK

0.1 MI S SAN PABLO AVE, Contra Costa, CA

Built 1960 Load: 20.4 t ADT: 13,320

THIRD ST

Good

Over: WILDCAT CREEK

0.1 MI N MARKET AVE, Contra Costa, CA

Built 1955 Load: 20.7 t ADT: 3,119

SAN PABLO AVE

Good

Over: GARRITY CREEK

0.03 MI N TARA HILLS DR, Contra Costa, CA

Built 1924 Load: 21.4 t ADT: 15,260

THIRD ST

Good

Over: SAN PABLO CREEK

AT PARR BLVD, Contra Costa, CA

Built 1955 Load: 22.0 t ADT: 2,222

WALNUT AVE

Good

Over: CONTRA COSTA CANAL

0.01 MI E THE ALAMEDA, Contra Costa, CA

Built 1955 Load: 22.4 t ADT: 300

Canal Trail

Good

Over: Galinda Creek

Contra Costa Canal, Contra Costa, CA

Built 1939 Load: 22.7 t ADT: 2

CAVALLO RD

Good

Over: E ANTIOCH CR

0.1 MI S WILBUR AVE, Contra Costa, CA

Built 1961 Load: 22.7 t ADT: 4,100

EL NIDO RANCH RD

Good

Over: LAFAYETTE AQUEDUCT

0.1 MI N MT DIABLO, Contra Costa, CA

Built 1969 Load: 23.0 t ADT: 2,843

LIVORNA RD

Good

Over: SAN RAMON CREEK

AT RTE 680, Contra Costa, CA

Built 1971 Load: 23.0 t ADT: 7,924

GREGORY LN

Good

Over: CONTRA COSTA CANAL

0.1 MI E PLEASANT HILL RD, Contra Costa, CA

Built 1939 Load: 23.3 t ADT: 9,000

FIRST ST

Good

Over: RODEO CREEK

EAST OF SOUTH 'H' ST, Contra Costa, CA

Built 1965 Load: 23.3 t ADT: 440

SAN PABLO AVE

Good

Over: PINOLE CREEK

0.1 MI E TENNENT AVE, Contra Costa, CA

Built 1929 Load: 23.7 t ADT: 11,000

SAN PABLO AVE

Good

Over: MCCARTHY CREEK

0.2 MI NE TARA HILLS DR, Contra Costa, CA

Built 1969 Load: 24.3 t ADT: 15,109

YGNACIO VALLEY RD

Good

Over: PINE CREEK

0.2 MI E OAK GROVE RD, Contra Costa, CA

Built 1954 Load: 24.3 t ADT: 39,300

BYRON HWY

Good

Over: BRUSHY CREEK

2.9 MI N ALAMEDA CO LINE, Contra Costa, CA

Built 1953 Load: 24.3 t ADT: 12,023

WILBUR AVE

Good

Over: E ANTIOCH CREEK

0.05 MI W OF CAVALLO RD, Contra Costa, CA

Built 1959 Load: 24.3 t ADT: 6,603

COURT LANE

Good

Over: GALINDO CREEK

0.1 MI S COWELL RD, Contra Costa, CA

Built 1960 Load: 24.3 t ADT: 300

WHITMAN RD

Good

Over: SDM CHANNEL

0.3 MI NE OAK GROVE RD, Contra Costa, CA

Built 1965 Load: 24.3 t ADT: 1,500

ALCOSTA BLVD

Good

Over: SOUTH SAN RAMON CREEK

0.9 MI EAST OF I-680, Contra Costa, CA

Built 1962 Load: 24.3 t ADT: 26,700

TREAT BLVD

Good

Over: PINE CREEK

AT SAN MIGUEL RD, Contra Costa, CA

Built 1965 Load: 24.3 t ADT: 18,245

HARBOR ST

Good

Over: KIRKER CREEK

AT STONEMAN AVE, Contra Costa, CA

Built 1968 Load: 24.3 t ADT: 2,000

WEST EL PINTADO RD

Good

Over: GREEN VALLEY CREEK

300 FT N DIABLO RD, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 3,322

CONCORD AVENUE

Good

Over: MARSH CREEK

1.0 MI W WALNUT AVE, Contra Costa, CA

Built 1959 Load: 24.3 t ADT: 3,979

FAIRVIEW AVENUE

Good

Over: SAND CREEK

AT SAND CREEK ROAD, Contra Costa, CA

Built 1966 Load: 24.3 t ADT: 8,500

MORNINGHOME RD

Good

Over: SYCAMORE CREEK

AT SYCAMORE VALLEY RD, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 400

VALLEY VIEW RD

Good

Over: SAN PABLO CREEK

0.2 MI E SAN PABLO DAM RD, Contra Costa, CA

Built 1966 Load: 24.3 t ADT: 8,760

MAY ROAD

Good

Over: SAN PABLO CREEK

AT SAN PABLO DAM RD, Contra Costa, CA

Built 1963 Load: 24.3 t ADT: 8,468

OLD RANCH RD

Good

Over: ALAMO CREEK

0.2 MI W DOUGHERTY RD, Contra Costa, CA

Built 1967 Load: 24.3 t ADT: 1,000

PINE VALLEY RD

Good

Over: SOUTH SAN RAMON CREEK

0.5 MI W ALCOSTA BLVD, Contra Costa, CA

Built 1967 Load: 24.3 t ADT: 9,000

MONTEVIDEO DR

Good

Over: SOUTH SAN RAMON CREEK

0.5 MI W ALCOSTA BLVD, Contra Costa, CA

Built 1967 Load: 24.3 t ADT: 12,000

OLD ORCHARD RD

Good

Over: SYCAMORE CREEK

AT SYCAMORE VALLEY RD, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 1,200

DUNCAN STREET

Good

Over: WALNUT CREEK

AT N. BROADWAY STREET, Contra Costa, CA

Built 1971 Load: 24.3 t ADT: 5,000

MT. DIABLO BLVD

Good

Over: LAS TRAMPAS CREEK

100 FT E. OF N. BROADWAY, Contra Costa, CA

Built 1971 Load: 24.3 t ADT: 14,294

MT. DIABLO BLVD

Good

Over: SAN RAMON CREEK

50 FT W. OF N. BROADWAY, Contra Costa, CA

Built 1971 Load: 24.3 t ADT: 14,294

CONCORD BLVD

Good

Over: MOUNT DIABLO CREEK

0.3 MI E OF BAILEY RD, Contra Costa, CA

Built 1957 Load: 25.6 t ADT: 9,381

INTERSTATE 680

Good

Over: LA GONDA WAY

04-CC-680-R9.25-DNVL, Contra Costa, CA

Built 1964 Load: 25.9 t ADT: 194,300

ST MARY'S ROAD

Good

Over: LAS TRAMPAS CREEK

1.1 MI N RHEEM BLVD, Contra Costa, CA

Built 1975 Load: 26.2 t ADT: 10,570

VINEYARDS PKWY

Good

Over: MARSH CREEK

0.1 MI W/O MARSH CREEK RD, Contra Costa, CA

Built 2007 Load: 26.2 t ADT: 302

ORINDA BALLFLD LN

Good

Over: QUERCUS CREEK

.1 MI E OF WILDER RD, Contra Costa, CA

Built 2011 Load: 26.2 t ADT: 300

VINEYARDS PKWY

Good

Over: MARSH CREEK

0.1 MI W/O MARSH CREEK RD, Contra Costa, CA

Built 2007 Load: 26.6 t ADT: 376

SR 160

Good

Over: SAN JOAQUIN RIVR ANTIOCH

04-CC-160-0.82, Contra Costa, CA

Built 1978 Load: 27.5 t ADT: 18,900

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.